CN2583407Y - Sealed water pump - Google Patents
Sealed water pump Download PDFInfo
- Publication number
- CN2583407Y CN2583407Y CN 02255822 CN02255822U CN2583407Y CN 2583407 Y CN2583407 Y CN 2583407Y CN 02255822 CN02255822 CN 02255822 CN 02255822 U CN02255822 U CN 02255822U CN 2583407 Y CN2583407 Y CN 2583407Y
- Authority
- CN
- China
- Prior art keywords
- sealing
- pump shaft
- pump
- utility
- water pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a novel sealing water pump, which is the novel water pump which improves the sealing structure. The utility model is mainly composed of a pump body, an end cover, and a pump shaft, wherein, the pump shaft is arranged in a pump shaft hole of the end cover. The utility model is characterized in that the inner side of the end cover is provided with a concave hole used for sealing; a rubber sealing ring is arranged in the concave hole used for sealing; the crude asbestos body arranged on the outer side of the end cover is also sealed; the end cover forms an inside-and-outside double-sealing structure, and thereby, the utility model effectively guarantees sealing performance, reduces friction coefficient of the pump shaft, reduces leakage component elements, and effectively enhances the lift and suction lift of the water pump. The utility model has the advantages of strong sealing performance and simple structure.
Description
Technical field
The utility model relates to a kind of centrifugal pump, particularly a kind of novel water pump that improves the shaft seal structure.
Background technique
The application area of water pump is very wide, and present water pump generally all is made up of the pump housing and impeller etc., and the pump housing is provided with end cap, and impeller is arranged on the pump housing by pump shaft.Sealing between pump shaft and the end cap is the key factor that guarantees water-aspirator pressure, promptly will guarantee the sealability between the two, does not influence the normal rotation of pump shaft again.Now used water pump generally all is to fill the asbestos bodies sealing in the outside of end cap, exists poorly sealed phenomenon, and the phenomenon that often leaks air influences the flow and the lift of water pump; For guaranteeing sealability, people usually guarantee sealing by the pressure of adjusting asbestos bodies, so just cause friction ractor to increase, and have ineffectually increased the use power of pump shaft.
Summary of the invention
The purpose of this utility model is to provide the novel seal water pump of the inside and outside double-sealing of a kind of end cap.
The utility model is achieved in that
A kind of novel seal water pump mainly is made up of the pump housing, end cap and pump shaft, and pump shaft is arranged in the pump shaft hole of end cap, it is characterized in that: the place, pump shaft hole in the end cap inboard also has a sealing shrinkage pool, and sealing is with being provided with rubber seal in the shrinkage pool.
After the utility model adopts said structure, owing to set up a built-in sealing seal ring in the inboard of end cap, form an inside and outside double sealing structure, effectively guaranteed sealability with the asbestos bodies in the outside.Seal ring adopts high strength, wear-resistant, highly polished hard rubber material, has reduced the friction ractor of pump shaft, thereby has effectively reduced the use power of pump shaft.Reduced the gas leakage link simultaneously, effectively improved the lift of water pump and inhaled journey.Has strong, simple in structure, the practical effect of sealability.No longer need in the use to adjust sealing load regularly, reduced operation link, easy to use.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model, and Fig. 2 is the sectional view of Fig. 1, and Fig. 3 is user mode figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
In the accompanying drawing, 1 is that end cap, 2 is that seal ring, 3 is spring ring for sealing with shrinkage pool, 4.
As shown in drawings, the utility model is a kind of novel water pump that has improved sealing configuration, mainly is made up of the pump housing, end cap 1, is tightly connected between the pump housing and the end cap 1, is provided with the pump shaft that has impeller in the pump housing, and pump shaft is arranged in the pump shaft hole of end cap 1.Be provided with asbestos bodies between the outside of end cap 1 and the pump shaft, be used for outer side sealing.Also be provided with a rubber seal 2 between the inboard of end cap 1 and the pump shaft, seal ring 2 adopts high strength, wear-resistant, highly polished hard rubber material, closely cooperates between pump shaft and the seal ring 2.Also have the sealing shrinkage pool 3 of indent at the place, pump shaft hole of end cap 1 inboard, above-mentioned seal ring 2 is positioned at sealing shrinkage pool 3, and it is built-in to make that seal ring 2 becomes.Sealing circle 2 is designed to annular, and the size of its endoporus and pump shaft adapt and be concentric with pump shaft, makes to closely cooperate between pump shaft and the seal ring 2, does not influence normal rotation again.
For guaranteeing sealability, above-mentioned seal ring 2 is designed to inside and outside two layers of linking to each other, and is provided with a pressure spring circle 4 between two layers.This spring ring 4 can effectively guarantee the sealing between seal ring 2 and the pump shaft.
Crude asbestos body sealing together with end cap 1 outside forms double-sealing between end cap 1 and the pump shaft, has effectively guaranteed sealability.
Claims (3)
1, a kind of novel seal water pump, mainly form by the pump housing, end cap (1) and pump shaft, pump shaft is arranged in the pump shaft hole of end cap (1), it is characterized in that: the pump shaft hole place inboard at end cap (1) also has sealing shrinkage pool (3), and sealing is with being provided with rubber seal (2) in the shrinkage pool (3).
2, novel seal water pump according to claim 1 is characterized in that: above-mentioned seal ring (2) is designed to annular, and the size of its endoporus and above-mentioned pump shaft adapt.
3, novel seal water pump according to claim 1 and 2 is characterized in that: above-mentioned seal ring (2) is formed by inside and outside continuous two layers, also is provided with a spring ring (4) between two layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02255822 CN2583407Y (en) | 2002-12-06 | 2002-12-06 | Sealed water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02255822 CN2583407Y (en) | 2002-12-06 | 2002-12-06 | Sealed water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2583407Y true CN2583407Y (en) | 2003-10-29 |
Family
ID=33724235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02255822 Expired - Fee Related CN2583407Y (en) | 2002-12-06 | 2002-12-06 | Sealed water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2583407Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386983A (en) * | 2015-12-22 | 2016-03-09 | 郑州宇通客车股份有限公司 | Brushless electronic water pump |
-
2002
- 2002-12-06 CN CN 02255822 patent/CN2583407Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386983A (en) * | 2015-12-22 | 2016-03-09 | 郑州宇通客车股份有限公司 | Brushless electronic water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |